Fix NEED_SEM code (WinCE)

1 files changed, 121 insertions, 122 deletions

diff --git a/sem_post_multiple.c b/sem_post_multiple.c
index 64c120b..6c582e2 100644
--- a/sem_post_multiple.c
+++ b/sem_post_multiple.c
@@ -1,122 +1,121 @@
-/*
- * -------------------------------------------------------------
- *
- * Module: sem_post_multiple.c
- *
- * Purpose:
- *	Semaphores aren't actually part of the PThreads standard.
- *	They are defined by the POSIX Standard:
- *
- *		POSIX 1003.1b-1993	(POSIX.1b)
- *
- * -------------------------------------------------------------
- *
- * --------------------------------------------------------------------------
- *
- *      Pthreads-win32 - POSIX Threads Library for Win32
- *      Copyright(C) 1998 John E. Bossom
- *      Copyright(C) 1999,2005 Pthreads-win32 contributors
- * 
- *      Contact Email: rpj@callisto.canberra.edu.au
- * 
- *      The current list of contributors is contained
- *      in the file CONTRIBUTORS included with the source
- *      code distribution. The list can also be seen at the
- *      following World Wide Web location:
- *      http://sources.redhat.com/pthreads-win32/contributors.html
- * 
- *      This library is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU Lesser General Public
- *      License as published by the Free Software Foundation; either
- *      version 2 of the License, or (at your option) any later version.
- * 
- *      This library is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *      Lesser General Public License for more details.
- * 
- *      You should have received a copy of the GNU Lesser General Public
- *      License along with this library in the file COPYING.LIB;
- *      if not, write to the Free Software Foundation, Inc.,
- *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "pthread.h"
-#include "semaphore.h"
-#include "implement.h"
-
-
-int
-sem_post_multiple (sem_t * sem, int count)
-     /*
-      * ------------------------------------------------------
-      * DOCPUBLIC
-      *      This function posts multiple wakeups to a semaphore.
-      *
-      * PARAMETERS
-      *      sem
-      *              pointer to an instance of sem_t
-      *
-      *      count
-      *              counter, must be greater than zero.
-      *
-      * DESCRIPTION
-      *      This function posts multiple wakeups to a semaphore. If there
-      *      are waiting threads (or processes), n <= count are awakened;
-      *      the semaphore value is incremented by count - n.
-      *
-      * RESULTS
-      *              0               successfully posted semaphore,
-      *              -1              failed, error in errno
-      * ERRNO
-      *              EINVAL          'sem' is not a valid semaphore
-      *                              or count is less than or equal to zero.
-      *
-      * ------------------------------------------------------
-      */
-{
-  int result = 0;
-#ifndef NEED_SEM
-  long waiters;
-  sem_t s = *sem;
-#endif
-
-  if (s == NULL || count <= 0)
-    {
-      result = EINVAL;
-    }
-
-#ifdef NEED_SEM
-
-  else if (!ptw32_increase_semaphore (sem, count))
-    {
-      result = EINVAL;
-    }
-
-#else /* NEED_SEM */
-
-  else if ((result = pthread_mutex_lock (&s->lock)) == 0)
-    {
-      waiters = -s->value;
-      s->value += count;
-      if (waiters > 0)
-        {
-          if (!ReleaseSemaphore (s->sem,  (waiters<=count)?waiters:count, 0))
-            {
-              result = EINVAL;
-            }
-        }
-      (void) pthread_mutex_unlock (&s->lock);
-    }
-
-#endif /* NEED_SEM */
-
-  if (result != 0)
-    {
-      errno = result;
-      return -1;
-    }
-
-  return 0;
-
-}				/* sem_post_multiple */
+/*

+ * -------------------------------------------------------------

+ *

+ * Module: sem_post_multiple.c

+ *

+ * Purpose:

+ *	Semaphores aren't actually part of the PThreads standard.

+ *	They are defined by the POSIX Standard:

+ *

+ *		POSIX 1003.1b-1993	(POSIX.1b)

+ *

+ * -------------------------------------------------------------

+ *

+ * --------------------------------------------------------------------------

+ *

+ *      Pthreads-win32 - POSIX Threads Library for Win32

+ *      Copyright(C) 1998 John E. Bossom

+ *      Copyright(C) 1999,2005 Pthreads-win32 contributors

+ * 

+ *      Contact Email: rpj@callisto.canberra.edu.au

+ * 

+ *      The current list of contributors is contained

+ *      in the file CONTRIBUTORS included with the source

+ *      code distribution. The list can also be seen at the

+ *      following World Wide Web location:

+ *      http://sources.redhat.com/pthreads-win32/contributors.html

+ * 

+ *      This library is free software; you can redistribute it and/or

+ *      modify it under the terms of the GNU Lesser General Public

+ *      License as published by the Free Software Foundation; either

+ *      version 2 of the License, or (at your option) any later version.

+ * 

+ *      This library is distributed in the hope that it will be useful,

+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of

+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ *      Lesser General Public License for more details.

+ * 

+ *      You should have received a copy of the GNU Lesser General Public

+ *      License along with this library in the file COPYING.LIB;

+ *      if not, write to the Free Software Foundation, Inc.,

+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

+ */

+

+#include "pthread.h"

+#include "semaphore.h"

+#include "implement.h"

+

+

+int

+sem_post_multiple (sem_t * sem, int count)

+     /*

+      * ------------------------------------------------------

+      * DOCPUBLIC

+      *      This function posts multiple wakeups to a semaphore.

+      *

+      * PARAMETERS

+      *      sem

+      *              pointer to an instance of sem_t

+      *

+      *      count

+      *              counter, must be greater than zero.

+      *

+      * DESCRIPTION

+      *      This function posts multiple wakeups to a semaphore. If there

+      *      are waiting threads (or processes), n <= count are awakened;

+      *      the semaphore value is incremented by count - n.

+      *

+      * RESULTS

+      *              0               successfully posted semaphore,

+      *              -1              failed, error in errno

+      * ERRNO

+      *              EINVAL          'sem' is not a valid semaphore

+      *                              or count is less than or equal to zero.

+      *

+      * ------------------------------------------------------

+      */

+{

+  int result = 0;

+  long waiters;

+  sem_t s = *sem;

+

+  if (s == NULL || count <= 0)

+    {

+      result = EINVAL;

+    }

+  else if ((result = pthread_mutex_lock (&s->lock)) == 0)

+    {

+      waiters = -s->value;

+      s->value += count;

+      if (waiters > 0)

+        {

+#ifdef NEED_SEM

+	  if (SetEvent(s->sem))

+	    {

+	      waiters--;

+	      s->leftToUnblock += count - 1;

+	      if (s->leftToUnblock > waiters)

+		{

+		  s->leftToUnblock = waiters;

+		}

+	    }

+	  else

+#else

+          if (!ReleaseSemaphore (s->sem,  (waiters<=count)?waiters:count, 0))

+#endif

+            {

+              result = EINVAL;

+            }

+        }

+      (void) pthread_mutex_unlock (&s->lock);

+    }

+

+  if (result != 0)

+    {

+      errno = result;

+      return -1;

+    }

+

+  return 0;

+

+}				/* sem_post_multiple */